Affiliation: | 1. ICMR Virus Unit, ID and BG Hospital, Beliaghata, Kolkata, India.; 2. National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, India.; 3. Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi, India .; International Center for Genetic Engineering and Biotechnology, India, |